<template>
  <div class="permission-container">
    <div class="app-container">
      <!-- 表格 -->
      <el-card>
        <div style="text-align: right; margin-bottom: 20px">
          <el-button type="primary" size="small" @click="hAdd(1, '0')">添加权限</el-button>
        </div>
        <el-table :data="list" row-key="id" border>
          <el-table-column label="名称" prop="name" />
          <el-table-column label="标识" prop="code" />
          <el-table-column label="描述" prop="description" />
          <el-table-column label="操作">
            <template v-slot="{row}">
              <el-button v-if="row.type === 1" type="text" @click="hAdd(2, row.id)">添加</el-button>
              <el-button type="text" @click="hEdit(row.id)">编辑</el-button>
              <el-button type="text" @click="hDel(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>

      <el-dialog :visible.sync="showDialog" :title="isEdit ? '编辑' : '添加'" @close="resetForm">
        <!-- 表单内容 -->
        <el-form ref="addForm" :model="formData" :rules="rules" label-width="100px">
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" />
          </el-form-item>
          <el-form-item label="权限描述" prop="description">
            <el-input v-model="formData.description" />
          </el-form-item>
          <el-form-item label="权限启用" prop="enVisible">
            <el-switch
              v-model="formData.enVisible"
              active-text="启用"
              active-value="1"
              inactive-text="不启用"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>

        <template #footer>
          <div style="text-align: right;">
            <el-button @click="showDialog = false">取消</el-button>
            <el-button type="primary" @click="hSubmit">确定</el-button>
          </div>
        </template>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { addPermission, delPermission, getPermissionDetail, getPermissionList, updatePermission } from '@/api/permisson'
import { tranListToTreeData } from '@/utils'
export default {
  data() {
    const validName = (rule, value, callback) => {
      let newList = []
      if (this.isEdit) {
        // 找兄弟的名字 自己排外
        newList = this.originList.filter(item => item.pid === this.formData.pid && item.id !== this.formData.id)
      }
      // 拿到当前所有的同级目录对象
      newList = this.originList.filter(item => item.pid === this.formData.pid)
      newList.map(item => item.name.trim()).includes(value) ? callback(new Error(value + '已占用')) : callback()
    }
    const validCode = (rule, value, callback) => {
      let codeList = this.originList
      if (this.isEdit) {
        codeList = this.originList.filter(item => item.id !== this.formData.id)
      }
      codeList.map(item => item.code).includes(value) ? callback(new Error(value + '已占用')) : callback()
    }
    return {
      list: [],
      originList: [],
      isEdit: false,
      showDialog: false, // 是否显示弹层
      formData: {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      },
      rules: {
        name: [
          { message: '不能为空', required: true, trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { message: '不能为空', required: true, trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.loadPermissionList()
  },
  methods: {
    async loadPermissionList() {
      const res = await getPermissionList()
      // console.log(res)
      this.originList = res.data.map(({ id, pid, name, code }) => ({ id, pid, name: name.trim(), code }))
      this.list = tranListToTreeData(res.data)
    },
    hAdd(type, pid) {
      // console.log(type, pid)
      this.formData.type = type
      this.formData.pid = pid
      this.showDialog = true
      this.isEdit = false
    },
    async hSubmit() {
      try {
        let res = null
        const valid = await this.$refs.addForm.validate().catch(e => e)
        if (!valid) return
        if (this.isEdit) {
          res = await updatePermission(this.formData)
        } else {
          res = await addPermission(this.formData)
        }
        // console.log(res)
        this.$message.success(res.message)
        this.showDialog = false
        this.loadPermissionList()
      } catch (e) {
        this.$message.error(e.message)
      }
    },
    resetForm() {
      this.formData = {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      }
      // 清空校验结构
      this.$nextTick(() => {
        this.$refs.addForm.clearValidate()
      })
    },
    async hDel(id) {
      const result = await this.$confirm('您确定要删除吗？', '提示', { type: 'warning' }).catch(e => e)
      if (result !== 'confirm') return
      try {
        const res = await delPermission(id)
        this.$message.success(res.message)
        this.loadPermissionList()
      } catch (e) {
        this.$message.error(e.message)
      }
    },
    async hEdit(id) {
      this.isEdit = true
      this.showDialog = true
      const res = await getPermissionDetail(id)
      this.formData = res.data
    }
  }
}
</script>
